feat: 更新Sidebar组件，优化外部链接处理；新增代码图像导航项

src/pages/sidebar/components/Sidebar.tsx

@@ -1,4 +1,4 @@
-import { FolderKanban, LayoutDashboard, Settings, PlayCircle, Cloud, Package } from 'lucide-react'
+import { FolderKanban, LayoutDashboard, Settings, PlayCircle, Cloud, Package ,Grape} from 'lucide-react'
 import { Sidebar, type NavItem } from '@/components/a/Sidebar'
 import { Logo } from './CNBBlackLogo.tsx'
 
@@ -23,7 +23,12 @@ const navItems: NavItem[] = [
     path: '/cnb-packages',
     icon: <Package className="w-5 h-5" />,
   },
-
+  {
+    title: '代码图像',
+    path: '/root/code-graph',
+    icon: <Grape className="w-5 h-5" />,
+    external: true,
+  },
   {
     title: '其他',
     path: '/other',